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Cisco Bug: CSCuw36616 - Process ipv4_mfwd_partner crash on Typhoon lC

Last Modified

Aug 06, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

5.2.0.BASE 6.0.0.BASE

Description (partial)

Symptom:
The process ip4_mfwd_partner is reloaded on a LC.

Conditions:
1.  A non-birdr route (S,G) is created and installed in the LC first, which has a specific RPF intf, say intf X.

2. When later on apply PIM Bidir configuration, this non-bidir route (S,G) becomes PIM BIDIR parent route, i.e, the route has IF flag set.

3. The original intf X has been removed from this PIM BIDIR route (S,G).

4.  With scale configuration of multicast routes, eventually, there could be a chance for one-time ipv4_mfwd_partner process reload in the LC hosting the intf X.
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